404. That’s an error.
The requested URL /_/+1/confirm?hl=en&url=http://software-tecnico-libre.es/en/article-by-topic/all-sections/all-topics/all-articles/build-a-parser-implementation2 was not found on this server. That’s all we know.
/_/+1/confirm?hl=en&url=http://software-tecnico-libre.es/en/article-by-topic/all-sections/all-topics/all-articles/build-a-parser-implementation2